Patents by Inventor Lichang Zeng

Lichang Zeng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10985328
    Abstract: Organic compounds containing indolocarbazoles as electron donor connected with electron acceptors such aza-triphenylene or dibenzoquinoxaline that can improve the performance of phosphorescent organic light emitting devices are disclosed.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: April 20, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Lichang Zeng, Chuanjun Xia
  • Patent number: 10978648
    Abstract: Novel heteroleptic iridium carbene complexes are provided. The complexes have lower-than expected sublimation temperatures, which is beneficial for the processing of these materials in solid state applications. Selective substitution of the ligands provides for phosphorescent compounds that are suitable for use in a variety of OLED devices. The carbene complexes can also be used as materials in a hole blocking layer and/or an electron transport layer to improve device performance.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 13, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chun Lin, Bin Ma, Chuanjun Xia, Lichang Zeng, Alan Deangelis, Edward Barron
  • Patent number: 10957861
    Abstract: Compounds of Formula I containing indolocarbazole and aromatic and/or heteroaromatic building blocks are useful for application in organic electroluminescent devices.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 23, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Alexey Borisovich Dyatkin, Zhiqiang Ji, Lichang Zeng, Chuanjun Xia
  • Patent number: 10957866
    Abstract: New metal complexes containing a substituted fused aromatic moiety is disclosed. The substituents on the fused aromatic moiety fine-tune molecular energy levels and solid-state self-assembly, conducive to improved material performance in devices useful for phosphorescent organic light emitting devices.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 23, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Mingjuan Su, Edward Barron, Zhiqiang Ji, Chuanjun Xia
  • Publication number: 20210036242
    Abstract: New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed.
    Type: Application
    Filed: October 21, 2020
    Publication date: February 4, 2021
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang JI, Lichang ZENG, Jui-Yi TSAI, Chun LIN, Chuanjun XIA, Alexey Borisovich DYATKIN, Walter YEAGER
  • Publication number: 20210024558
    Abstract: A compound including a first ligand LA having the structure of Formula I, is disclosed. In Formula I, rings A and B are each a 6-membered rings; Z1 and Z2 are each carbon or nitrogen; each RA and RB is independently hydrogen or a variety of substituents; any two substituents are optionally joined or fused into a ring; at least one RA or RB comprises an aromatic group substituted by a bridge structure, and this RA or RB joins with an adjacent substituent and fuses to ring A or B; the bridge structure comprises a backbone structure that forms a fused first ring; the backbone structure is saturated, comprises at least one heteroatom, and is optionally further substituted; and the ligand LA is coordinated to a metal M that can be coordinated to other ligands.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Applicant: Universal Display Corporation
    Inventors: Zhiqiang JI, Lichang ZENG
  • Publication number: 20210024557
    Abstract: A compound having the formula [LA]3-nIr[LB]n is disclosed.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Applicant: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang JI, Jui-Yi TSAI, Lichang ZENG, Alexey Borisovich DYATKIN, Walter YEAGER, Eric MARGULIES, Pierre-Luc T. BOUDREAULT
  • Publication number: 20210009615
    Abstract: A compound having the formula Ir(LA)n(LB)3?n, having the structure Formula I, is disclosed. In Formula I, each of Z1, Z2, Z3, and Z4 is CR2; X is O, S, or Se; n is an integer from 1 to 3; R1, R2, R3, R4, and R5 each independently represent mono- to a maximum possible number of substitutions, or no substitution; R1, R2, R3, R4, and R5 are each independently selected from a variety of substituents; any two substitutions in R1, R2, R3, R4, and R5 are optionally joined to form a ring; at least one pair of substitutions in R1, R2, R3, R4, and R5 are joined together to form a bridge structure comprising a backbone structure that forms a fused first ring, which can be further substituted; and the backbone structure is saturated. Organic light emitting devices and consumer products containing the compounds are also disclosed.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Applicant: Universal Display Corporation
    Inventors: Lichang ZENG, Zhiqiang JI, Eric A. MARGULIES, Paul M. LAHTI, Michael S. WEAVER
  • Patent number: 10862054
    Abstract: New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 8, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Lichang Zeng, Jui-Yi Tsai, Chun Lin, Chuanjun Xia, Alexey Borisovich Dyatkin, Walter Yeager
  • Patent number: 10862046
    Abstract: The present invention relates to mechanically linked emitter-emitter, host-host, and emitter-host materials. These materials may be useful in organic electroluminescence devices.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: December 8, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Chun Lin, Lichang Zeng, Chuanjun Xia
  • Patent number: 10844084
    Abstract: A compound including a first ligand LA having the formula: is disclosed.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: November 24, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Lichang Zeng
  • Patent number: 10844085
    Abstract: A compound having the formula [LA]3-nIr[LB]n is disclosed. In the formula, LA is and LB is Formula I.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 24, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Zhiqiang Ji, Jui-Yi Tsai, Lichang Zeng, Alexey Borisovich Dyatkin, Walter Yeager, Eric Margulies, Pierre-Luc T. Boudreault
  • Patent number: 10840458
    Abstract: Novel organic materials containing indolocarbazoles as donor connected with electron acceptors such as quinoxaline or dibenzoquinoxaline for PHOLED devices are disclosed.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 17, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Bin Ma, Alan Deangelis, Lichang Zeng, Chuanjun Xia, Jerald Feldman
  • Patent number: 10833276
    Abstract: This invention relates to carbazole- or indolocarbazole-containing donor acceptor type compounds with an ortho substitution on the aromatic group that is connected to carbazole. This unique substitution pattern will provide materials with superior performance for host applications. These compounds can also be used as delayed fluorescent emitters.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: November 10, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Bin Ma, Chuanjun Xia
  • Patent number: 10822361
    Abstract: A compound having the formula Ir(LA)n(LB)3?n, having the structure, Formula I, is disclosed. In Formula I, Z1, Z2, Z3, and Z4 each independently are N or CR2; X is O, S, or Se; n is an integer from 1 to 3; R1, R2, R3, R4, and R5 each independently represent mono- to a maximum possible number of substitutions, or no substitution; R1, R2, R3, R4, and R5 are each independently selected from a variety of substituents; any two substitutions in R1, R2, R3, R4, and R5 are optionally joined to form a ring; at least one pair of substitutions in R1, R2, R3, R4, and R5 are joined together to form a bridge structure comprising a backbone structure that forms a fused first ring, which can be further substituted; and the backbone structure is saturated. Organic light emitting devices and consumer products containing the compounds are also disclosed.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: November 3, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Zhiqiang Ji, Eric A. Margulies, Paul M. Lahti, Michael S. Weaver
  • Patent number: 10811618
    Abstract: Metal complexes containing heteroaryl and its analogues as ligands are disclosed in this application. These compounds may be useful as charge transport materials in OLEDs.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: October 20, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Chuanjun Xia, Chun Lin
  • Patent number: 10804475
    Abstract: A compound having a ligand LA of Formula I, is described. In the structure of Formula I, A is five-membered or six-membered carbocyclic or heterocyclic ring; B is a five-membered carbocyclic or heterocyclic ring; each of Z0 to Z6 is selected from nitrogen and carbon; each R1 to R4 is independently selected from a variety of substituents; any two adjacent substituents are optionally joined or fused into a ring; ligand LA is coordinated to Pt; and the ligand LA is optionally linked with one or more other ligands. Formulations and devices, such as OLEDs, that include the first compound are also provided.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: October 13, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Lichang Zeng, Chuanjun Xia, Chun Lin
  • Publication number: 20200303652
    Abstract: A method for fabricating an OLED using a mixture that is an evaporation source for a vacuum deposition process includes providing a container that contains the mixture, providing a substrate having a first electrode disposed thereon, depositing an organic layer over the first electrode by evaporating the mixture in the container in a high vacuum deposition tool, and depositing a second electrode over the organic layer.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Applicant: Universal Display Corporation
    Inventors: Vadim ADAMOVICH, Lichang ZENG, Ting-Chih WANG, Chuanjun XIA, Michael S. WEAVER
  • Publication number: 20200303657
    Abstract: The present invention includes a new series of benzofused heterocyclic ligands for metal complexes. These complexes show promising photophysical performance when incorporated into OLEDs.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Applicant: Universal Display Corporation
    Inventors: MINGJUAN SU, WALTER YEAGER, ALAN DEANGELIS, BIN MA, JUI-YI TSAI, LICHANG ZENG, CHUANJUN XIA
  • Patent number: 10777749
    Abstract: Novel organic compounds containing aza-dibenzofuran, aza-dibenzothiophene and aza-dibenzoselenophene are disclosed in this application. These compounds improve OLED performance.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: September 15, 2020
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Walter Yeager, Lichang Zeng, Chuanjun Xia